Suppose an Object Whose Mass Is M Is Moving with a Speed

question 73

Multiple Choice

Suppose an object whose mass is m is moving with a speed of 0.8c.Which is the correct expression for its kinetic energy?

• A)K = mv²/2
• B)K = γmc²
• C)K = (γ − 1)mc²
• D)Answers a and c are both correct.

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Definitions:

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